Making idle MP lie, disorderly creature (9)

I believe the answer is:

millipede

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'disorderly creature' is the definition.
'millipede' can be an answer for 'creature' (millipede is a kind of creature). I am unsure of the 'disorderly' bit.

'making idle mp lie' is the wordplay.
'making' indicates anagramming the letters.
'idle'+'mp'+'lie'='idlemplie'
'idlemplie' with letters rearranged gives 'MILLIPEDE'.

Can you help me to learn more?

(Other definitions for millipede that I've seen before include "Many-legged creature" , "Bug" .)

I've seen this clue in The Daily Express.

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